Once a seat reaches 30 per cent BME population, it goes Labour. In 2010, this applied to 75 seats. By 2022, it could apply to around 120 seats.
Another region, another strong Conservative result against a mismanaged Labour campaign plagued by local miseries.
The third piece in our series examines the four-way battle for the hearts and minds of voters in Wales.
Once a seat reaches 30 per cent BME population, it goes Labour. In 2010, this applied to 75 seats. By 2022, it could apply to around 120 seats.